Metrohm 750 Autosampler - Manual (Page 27)

3 Operation
750 Autosampler
24
CLOSURE DURATIONS
à Injection 1
1 … 32000 s
Contact closure time for "START"
Input of contact closure time for the signal to be produced at
output "START" when the injection valve is switched to the
"INJECT" position.
CLOSURE DURATIONS
à
Event # 1
1 … 32000 s
Contact closure time for "T1", "T2" or "T3"
Entry of contact closure time for the signal to be produced at
output "T#". The signal output is made according to the time
laid down in the method " Event# Time ".
CLOSURE DURATIONS
à Exit
Return to "SYSTEM SETTINGS" menu
SYSTEM SETTINGS
à
Loop Size
Loop size
Size of the loop at the injection valve at the 733 IC Separation
Center. By pressing <ENTER> the following screen is displayed:
Enter Loop Size
10
µµL
(Four injs/vial)
1 … 100 µ L
Entry of loop size
Entry of loop size in
µ L. In the bottom line the number of
possible injections per sample is displayed. For a volume of
≤ 10 µ L the maximum is 4, for a volume > 10 µ L a maximum
of 3 injections can be made.
SYSTEM SETTINGS
à Needle Setup
Needle settings
By pressing <ENTER> the following menu is opened:
Depth
Needle depth.
Pressure Pressure for needle lowering.
NEEDLE SETUP
à Depth
Needle depth
By pressing <ENTER> the following screen is displayed:
Enter Needle
position for ONE
injection per vial.
<POS 3>
POS1,POS2,POS3,POS4
Entry of needle depth
Entry of the position to which the transfer needle is lowered
with 1 injection per sample. The positions correspond to the
following displacement volumes (see section 1.2):
POS1 310 µ L POS3 590 µ L
POS2
450 µ L
POS4
730 µ L
If sample vessels closed with 6.2743.030 filter stoppers are used then
immersion depth "
POS4
" must not be selected.